Christoph hirschmann



(No Model.)

0. HI'RSGHMANN'.

SKATE.

Patented May 17, 1892.

nl ll 41mm]! m; mums PETERS cm, rxcro-umm, msnmu'rcu, n. c.

U ITED STAT PATENT OFFICE.

CHRISTOPH HIRSOHMANN, OF NEIVARK, NEW JERSEY, ASSIGNOR TO HENRYFOERSTER, OF SAME PLACE.

SKATE.

SPECIFICATION forming part of Letters Patent No. 475,241, dated May 17,1892.

Application filed December 21, 1891- Serial No. 415,698. (No model.)

To aZZ whom it may concern:

Be it known that I, OHRIsToPH IIIRSOH- MANN, a citizen of the UnitedStates, residing atNewark, in thecounty of Essex and State of NewJersey, have invented certain new and useful Improvements in Skates; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

The object'of this invention is to facilitate the operation of adjustinga skate for the foot, to reduce the cost of construction, and to secureother advantages hereinafter referred to.

The invention consists in certain novel features of construction hereinshown and described, and finally pointed out in the claims.

Referring to the accompanying drawings, in which similar letters ofreference indicate corresponding parts in each of the figures where theyoccur, Figure 1 represents in side elevation a skate embodying myimprovement. Fig. 2 represents a top plan view of the same. Fig. 3 is asimilar View, enlarged,

of the central portion of the skate, which illustrates more clearlymyimprovement and Fig. 4 is an inverted plan of the same. Fig. 5 is asection taken through line 00 of Fig. 3, and Fig. 6 is a section takenthrough line'g of the same figure.

The heel and toe portions and the runner or iron of the skate are of theordinary or usual construction and arrangement, and will not beotherwise described or referred to herein than is deemed necessary ordesirable to make my improvement clearly understood.

In said drawings, a indicates the toe-plate; b, the toe-clamps; cl, thefixed heel-plate; d, the movable heel-plate; e and f, the heelclamps,and g the tightening-lever. As already intimated, these parts are allold.

it and '5 indicate two slotted plates or bars, one of which is pivotallyconnected at one end with the tightening-lever g by the pivot q, and theother with the toe-clamps b by the pivot 1", their opposite extremitiesoverlapping and sliding upon one another, as will be shown farther on,the end of lever g being pivotally secured to the heel-clamp by means ofthe pivot s.

1c indicates a slotted cam-plate of circular or polygonal form (in thepresent case it is circular) having a milled edge, which is pivotallyconnected with the plate 1 the pivot Z passing through and working inthe slot m of the plate h as the said cam-plate is rotated.

91 indicates a pin or rivet carried by the plate h and passing throughand working in the slot 70 of the cam-plate and through the slot 0 inthe plated as the cam-plate is rotated, the elfect of which is, whenturned in one direction, to force the toe and heel clamps toward oneanother, thereby tightening their grip upon the boot or shoe or toloosen said grip when turned in the opposite direction, as will beunderstood upon reference to the drawings. 7'

When it is desired to placethe skate upon the foot, the free end oflever g is thrown around to one side in the direction of the arrow inFig.2. This will cause the toe and heel clamps to be forced apart, owingto the fact that the pivotal points between the lever g and theheel-clamp is forward of the pivoted point q, and the movement of thelever carries the pivotal point g at the end'bf the plate '0' around andforward of the pivotal point .9. The width of the toe-clamps b is thenadjusted to the width of the foot by turning the cam-plate 7c in theproper direction. Th'e'skate is then applied to the foot and the lever gis thrown back under the heel-plate, which draws the toe and heel clampsso tightly against the boot or shoe that the skate can not be removed,except by throwing the lever out laterally, as before described.

By means of this improvement the operation of adjusting a skate to thefoot is accomplished much easier and the device is less expensive thanthose heretofore employed, as well as more sightly in appearance.

Having thus described my invention, whatI claim, and desire to secure byLetters Patent of the United States, is'

1. In a skate, the combination, with the foot or toe clamps and themovable heel-clamps, of the plates h and i, the inner ends of whichoverlap and are movable upon each other, a cam-plate pivotally securedto one of the plates and engaging with and adapted to move other, acam-plate 7c, pivotally secured to one the other plate longitudinally onthe firstof the plates and provided with a spiral slot, mentioned plate,and means for moving said and a pin n, secured to the other plate and 15plates relatively to one of the clamps of the passing through the slotof the cam-plate, sub 5 skate, substantially as described. stantially asset forth.

2. In a skate, the combination,with the toe In testimony that I claimthe foregoing I and heel clamps movably secured to the body havehereunto set my hand this 19th day of of the skate, of a lever. g,pivotally secured December, 1891.

to one of the clamps, two plates h and i, se- OI-IRISTOPH HIRSCHMANN. 1ocured, respectively, to the remaining clamp Vitnesses:

and to the lever, the adjacent ends of said OLIVER DRAKE,

plates being slotted and overlapping each HENRY FOERSTER.

